Safety sight-feed reflector



(No Model.)

W. S. GETOHELL.

SAFETY SIGHT FEED REFLECTOR.

Np. 363,060 Patented May '17, 1887.

i lll llllllllIlllIllllIlllllllllIllllllllllllllll NITE STATES PATENT twice.

SAFETY SIGHT-FEED REFLECTOR.

SPECIFICATION forming part of Letters Patent No. 363,060, dated May 17, 1887.

Application filed January 20, 1887. Serial No. 224,945, (No model clear, and exact description thereof.

My invention relates to improvements in those devices which have what are known as sightglasscs, for the purpose of watching their operation; and my invention consists, in connection with the sight-glass, of a guard or shield between the observer and the glass and a reflectingsurface ormirror on the other side of the glass, whereby, though said glass is concealed from direct vision, its operation may be as readily observed in the reflecting surface or mirror. 4

My invention further consists in the particular and novel arrangement and combination of said guard and mirror and their relation to the sight-glass, all of which Ishall hereinafter fully describe.

The object of my invention is to protect the observer from injury due to the bursting of the sight-glass.

Though my invention is applicable to all devices which have sight-glasses the contents of which are under such pressure or are of such a nature as to tend to burst the glass, I shall confine my description and illustration to what are known as sight-feed lubricators, which are placed in locomotive-cabs on the boilerhcad, and which feed oil to the cylinders and valves.

Referring to the accompanying drawings, Figure l is a perspective view of my safety mirror sight, showing its application to a sight feed lubricator,one-halfonly ofwhich is shown, as it is alike on both sides. Fi 2 is a plan of the guard and mirror, showing their connection.

A is here used. to designate the lubricator as a whole. Its various parts need not be more particularly described than to say that B is the sight-glass on one side. This glass is, as

usual, filled with the water of condensation, which is under considerable pressure, and through this water the drop of oil ascends at. required intervals.

The lubricator is attached to the boiler-head in a position to be observed constantly by the engineer, the sight-glass 011 one side furnishing oil to one cylinder and the sight-glass on the other side to the other cylinder. These glasses are subjected to so much pressure and are so close to the engineer that when they burst, as they frequently do, injury often results to the observer, both from the glass itself and from the scalding due to the escaping heated contents.

My invention contemplates the intervention of a guard between the engineer and the sightglass, which will protect him from injury, and the placing on the other side of the glass a reflecting-surface or mirror in such a position that the working of said glass may be as well observed by reflected light. Although, as far as the principle of my inventionis concerned, this guard and mirror may be variously located, I prefer to arrange and combine them in the manner I shall now describe.

The guard 0 consists of a curved piece of metal or other suitable material. It is fitted before the sight-glass 13, its ends bearing upon the collars of the upper and lower nuts, I), as shown, which form seats for said guard, upon which it may be turned axiallyto any suitable position.

Arms D are secured to the ends of the guard.

and extend back wardly and carry in their rear ends a pintle, E, upon which the mirror F is pivoted, so that said mirror may have an adjustment of its own, while by reason of its connection through the arms with the guard it moves also with said guard, so that their positions remain relatively unchanged. It will now be seen that the guard is between the glass and the face of the observer, and therefore protects him from injurywhen the glass bursts. At the same time he can observe the reflection of the glass in the mirror, and can as accu' rately determine the oil-feed as if he were looking directly at the sight-glass.

By reason of the adjustment of both guard and mirror the device may be arranged accurately to conform to the position of the observer, so that no matter what the position may be he will be protected; and, further, by reason of the independent adjustment of the mirror, he can arrange for the most accurate and. con venient observations,

As I have said before, my invention is applicable to all devices which have sight-glasses, and I therefore do not wish to confine myself to the sight-feed lubricator I have illustrated, be-

cause the invention may be as readily applied to the sight water-glass, which is attached also to the boiler-head, and which indicates the height of the water in the boiler and other conditions necessary to be observed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A safety mirror-sight for affording the observer protection from breaking sight-glasses, comprising a guard partially enveloping the sight-glass and covering its front, and a mirror or reflecting-surface behind the glass, whereby the operation of the lubricant maybe observed by reflected light, substantially as described.

2. A safety mirror-sight for affording the obcomprising a guard-plate partially enveloping of the sight-glass and connected with the guard plate, whereby said guard-plate and mirror always retain their relative positions, substantially as described.

3. In combination with the axially-rotary guard-plate partially enveloping the sightglass, the mirror or reliecting'surfiiee onthe opposite side of said sight-glass, a connection between said mirror and guard-plate, by which the two may be moved together, and a pivotconnection of the mirror, by which it may have an independent adjustment, substantially as described.

In witness whereof I have hereunto set my hand.

WINFIELD SCOTT GETOHELL.

Witnesses:

S. H. NOURsE, H. 0. LEE. 

